An exhaustive effort to sequence the mouse Y chromosome reveals a surprisingly large and complex biological beast, at the same time providing remarkable insight into a heated battle for supremacy between mammalian sex chromosomes.
Biotechnology
Oct 30, 2014
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A UT Arlington research team says their study of genetic information from more than 4,000 beetle species has yielded a new theory about why some species lose their Y chromosome and others, such as humans, hang on to it.
Biotechnology
Jun 17, 2014
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In many species, the possession of X and Y chromosomes determines whether an individual develops into a male or female. In humans, for example, individuals who inherit their father's Y chromosome become male (XY), and individuals ...
Evolution
May 13, 2014
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The Y chromosome, which distinguishes males from females at the genetic level, appeared some 180 million years ago. It originated twice independently in all mammals. The team of professor Henrik Kaessmann at the Center for ...
Biotechnology
Apr 23, 2014
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Despite a well-documented history of dramatic genetic decay, the human Y chromosome has over the course of millions of years of evolution managed to preserve a small set of genes that has ensured not only its own survival ...
Biotechnology
Apr 23, 2014
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In the beef industry, if a cow does not get pregnant after breeding, she becomes an economic liability in the herd. Lack of calf production can significantly reduce annual revenue for producers.
Plants & Animals
Apr 22, 2014
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Male bears are seemingly always on the prowl, roaming much greater distances than females, particularly for mating. For bear evolution, studying the paternally inherited Y chromosome is therefore a rich source to trace both ...
Ecology
Mar 25, 2014
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A comparison of Y chromosomes in eight African and eight European men dispels the common notion that the Y's genes are mostly unimportant and that the chromosome is destined to dwindle and disappear.
Biotechnology
Jan 9, 2014
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The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the ...
Biotechnology
Nov 21, 2013
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Females carry two copies of the X chromosome which—unlike the male's gene-poor Y chromosome—are home to 1000 genes crucial to development. So how does the developing female embryo inactivate duplicate genes along the ...
Biotechnology
Oct 29, 2013
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